Folding knife



FIG. 1 is a front elevation view of a folding knife in its folded position, showing our new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right end elevation view thereof;

FIG. 6 is a left end elevation view thereof;

FIG. 7 is a front elevation view of the folding knife of FIG. 1, shown in its open position;

FIG. 8 is a rear elevation view thereof;

FIG. 9 is a top plan view thereof;

FIG. 10 is a bottom plan view thereof;

FIG. 11 is a left end elevation view thereof; and,

FIG. 12 is a right end elevation view thereof. 

The ornamental design for a folding knife, as shown and described. 